Pi Zero Peep Hole Camera
 
My front door is down a long hallway from the rest of my apartment, and also my apartment is located quite a ways from the front building entrance, so waiting for delivery folks after I've buzzed them in is a drag. I upgraded my peep hole with a Pi Zero and camera so I can remotely monitor the door from the comfort of my desk. I tried using the NoIR camera as well, but it's not much better at revealing the shadows without the addition of some IR LEDs, which I'm stumped how to install inside the door without having them reflect on the plastic peep hole lens and blow out the image. I'll make a part two if/when that happens. Thanks so much for watching and supporting me! Full parts list: http://www.instructables.com/id/Pi-Zero-Peep-Hole-Camera/